WASET
    D. Bąk-Grabowska and  K. Grzesik and  A. Iwanicka and  A. Jagoda,  Employee Assessment Systems in the Structures of Corporate Groups.   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2016, vol. 109(1). 133 - 136
    [viewed 17 April 2024]. Available from: https://publications.waset.org/pdf/10003401.